Which version do I need? We also carry a similar model with a different specification. Compare size, connection, length and the other details before ordering, and contact us if you need help choosing. See also: Honeywell Home 2-Way 1/2 in Sweat VC Valve Assembly 3.5 Cv Linear Flow VCZAA1100/U.
The VCZAA1100 is a VC series two-way valve assembly from Resideo, the brand that carries the Honeywell Home line of residential heating controls, built for hydronic zoning and fan coil control. It is a 1/2-inch sweat body with a 3.5 Cv rating and a linear flow characteristic.
A linear characteristic means flow tracks stem position in a straight line, which keeps a modulating loop stable instead of dumping most of its capacity in the first part of the stroke.
What a complete VC zone valve takes: a valve body, a cartridge, and an actuator, ordered separately. This listing is the valve assembly — pick the actuator that matches your control signal, whether that is two-position, floating, or modulating.
Building the valve from separate parts is what makes the VC platform worth specifying: the same body stays in the pipe while the actuator is matched to the control system, and a worn seat is handled by pulling the cartridge rather than cutting the body out.
Actuators and cartridges for this valve body
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Brand: Honeywell Home
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Manufacturer Part #: VCZAA1100/E
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Series: VC
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Configuration: 2-way
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Connection size: 1/2 in
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Connection type: Sweat
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Cv: 3.5
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Flow characteristic: Linear
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Category: Zone Valves
Full Specifications
| Cartridge Material |
Ryton and Noryl Plastic |
| Controlled Media |
Water with max. 50 % glycol according to VDI 2035 |
| Color |
Bronze |
| Includes |
Valves (10), Cartridge Installation Wrench |
| Product Weight |
0.47 lb |
| Warranty |
5 years |
| Ambient Operating Temperature (Min) |
32 °F, 0 °C |
| Ambient Operating Temperature (Max) |
150 °F, 65 °C |
| Connection Type |
Sweat |
| Differential pressure for close-off (Max) |
60 psi, 414 kPa (4 bar) |
| Flow Coefficient |
3.5 Cv; 3.03 Kvs |
| Media Temperature (Min) |
34 °F, 1 °C |
| Media Temperature (Max) |
203 °F, 95 °C |
| Operating Pressure (Max) |
300 psi, 2068 kPa (20 Bar) |
| Seal Material |
EPDM Rubber |
| Static Pressure Rating |
300 psi, 2068 kPa (20 Bar) |
| Valve Body Material |
Bronze |
| Valve Body Pattern |
Two-way, Straight Through |
| Valve Cartridge |
Yes |
| Valve Flow Characteristic |
Linear |
| Valve Seat Material |
EPDM |
| Valve Stem Material |
Stainless Steel |
| Valve Stem Travel |
0.4 in, 10 mm |
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